Environmental Chemical Company Dodges Cleanup for Over 30 Years
After contaminating soil and groundwater near Zionsville, Indiana with hazardous chemicals, over 230 corporations spent three decades negotiating partial fixes while residents lived with toxic pollution.
Environmental Conservation and Chemical Corporation and approximately 235 other defendants contaminated a Superfund site near Zionsville, Indiana with hazardous substances. Despite a 1991 Consent Decree requiring cleanup, the remedy repeatedly failed to meet standards. Over three decades, the EPA had to force the settling defendants to implement additional work through amendments in 1998, 1999, 2006, and now 2024, while contamination migrated beyond the site boundaries and threatened local groundwater.
This case shows how corporations can delay environmental cleanup for generations while communities bear the health risks.
The Allegations: A Breakdown
| 01 | Environmental Conservation and Chemical Corporation and approximately 235 other defendants allowed hazardous substance contamination to spread through soil and groundwater at a site near Zionsville, Indiana, requiring federal Superfund intervention. | high |
| 02 | The soil vapor extraction system installed to treat contamination failed to achieve the requisite cleanup standards even after five years of operation, forcing EPA to determine in March 2003 that additional work was required. | high |
| 03 | The permeable reactive gate system installed in 2008 proved inadequate by 2011, with operations adversely affected by larger volumes of water than expected in the trench system after precipitation events. | high |
| 04 | Contamination was detected migrating from the site to an area south of the original boundaries by 2016, demonstrating that the containment measures had failed. | high |
| 05 | Settling defendants repeatedly required EPA approval and legal mandates before implementing each phase of cleanup work, rather than proactively addressing contamination. | medium |
| 06 | The cleanup required a Resource Conservation and Recovery Act compliant cover over certain areas where hazardous substances were present, indicating significant surface contamination. | high |
| 07 | Negotiations to amend the consent decree stalled after 2006, and the parties never reached full agreement on proposed work plans, yet proceeded with additional work anyway without formal court approval until now. | medium |
| 08 | The companies suspended operation of the soil vapor extraction system and active dewatering in 2012 to investigate water sources, allowing contaminated water to passively collect in trenches. | medium |
| 01 | The original 1991 Consent Decree took over a decade to prove insufficient, with EPA not determining failure to meet cleanup standards until 2003, twelve years after the decree was entered. | high |
| 02 | EPA published an Explanation of Significant Differences in 2006 stating that if they proceeded with the revised remedy, the agencies and defendants would seek to amend the consent decree, but that amendment was never finalized until 2024. | high |
| 03 | The parties proceeded in good faith to implement measures from the 2006 ESD without formal court approval, allowing cleanup work to proceed outside the enforceable consent decree framework. | medium |
| 04 | Negotiations to amend the consent decree stalled sometime after 2006, leaving the site operating under informal agreements rather than court-enforceable obligations for nearly two decades. | high |
| 05 | The consent decree capped oversight costs at $850,000 for work through 2003, potentially limiting the State and EPA’s ability to fully monitor compliance without incurring unreimbursed expenses. | medium |
| 06 | EPA repeatedly granted conditional approval with authorization to proceed pending entry of the stipulation, rather than requiring full compliance before work began. | medium |
| 07 | The remedy required modification in 1998, 1999, 2006, and 2024, demonstrating that regulatory oversight failed to ensure an adequate initial cleanup plan. | high |
| 01 | The settling defendants implemented only the minimum work required by each consent decree modification, waiting for EPA to determine failures before proposing additional measures. | high |
| 02 | Defendants negotiated a cap on oversight costs paid to the United States and Indiana, limiting their financial exposure to $850,000 through 2003 regardless of actual government expenses. | medium |
| 03 | The companies allowed contamination to persist for years between each remedy modification rather than investing in comprehensive solutions upfront. | high |
| 04 | Settling defendants suspended active pumping operations in 2012 and allowed passive collection of contaminated water, reducing operational costs while contamination continued. | medium |
| 05 | The repeated design changes and partial implementations suggest a strategy of incremental compliance to minimize immediate expenditures rather than comprehensive remediation. | medium |
| 06 | Defendants required 90 days after the 2024 stipulation just to submit a revised draft alternatives analysis report, further delaying selection of a long-term remedy. | low |
| 01 | The original case was filed in 1983, but the first consent decree was not entered until September 1991, allowing eight years of contamination to persist before formal remediation began. | high |
| 02 | After EPA determined in March 2003 that cleanup standards were not met, it took until 2005 for parties to notify the court, and until February 2006 for a modification to be approved. | high |
| 03 | The 2006 Explanation of Significant Differences stated parties would seek to amend the consent decree, but negotiations stalled and no amendment was finalized until January 2025, nearly 19 years later. | critical |
| 04 | Settling defendants submitted the Work Plan for Active Pumping in August 2021, but it was not approved until September 2021, and implementation was further delayed pending the 2024 stipulation. | medium |
| 05 | The Replacement Treatment Plant Design was submitted in August 2023 but received only technical approval with authorization to proceed held pending entry of the 2024 stipulation. | medium |
| 06 | EPA approved multiple work plans on condition that authorization to proceed would be withheld pending entry of this stipulation, creating additional delay before implementation could begin. | medium |
| 07 | The 2024 amendment allows defendants 90 days just to submit a revised alternatives analysis, meaning selection of an amended long-term remedy remains months or years away. | medium |
| 08 | The consent decree establishes escalating penalties for delayed work, but only after 7 days, allowing companies a week of delay before any financial consequences begin. | low |
| 01 | Hazardous substance contamination at the site threatened soil and groundwater near Zionsville, Indiana, putting local residents at risk of exposure to toxic chemicals. | high |
| 02 | Contamination was detected migrating south of the original site boundaries by 2016, expanding the area where residents faced potential groundwater exposure. | high |
| 03 | The soil vapor extraction system was designed to treat contamination in soil and groundwater, indicating volatile hazardous substances that could migrate through air and water pathways. | high |
| 04 | The remedy required a Resource Conservation and Recovery Act compliant cover, suggesting contamination levels high enough to require isolation from direct contact and precipitation infiltration. | high |
| 05 | Larger than expected volumes of water in the trench system after precipitation events indicated ongoing mobilization of contaminants that could reach groundwater aquifers. | medium |
| 06 | Communities near the site lived with contamination from 1983 when the case was filed through at least 2024, a period of over 40 years of potential exposure. | critical |
| 01 | Residents near Zionsville, Indiana have lived adjacent to a Superfund site for over 30 years while defendants negotiated partial cleanup measures. | high |
| 02 | The site required installation of extraction wells south of the original boundaries, indicating contamination spread into additional residential or community areas. | high |
| 03 | Cap extensions were required to address drainage and prevent contamination migration, suggesting the original remedy failed to protect neighboring properties. | medium |
| 04 | The community faced uncertainty about groundwater safety while defendants conducted investigations and implemented partial remedies over multiple decades. | high |
| 05 | Monthly progress reports were required but primarily went to regulatory agencies rather than being made transparently available to affected residents. | medium |
| 01 | The consent decree allows defendants to avoid liability for oversight costs above $850,000 paid before December 2003 and January 2009, capping their financial accountability. | medium |
| 02 | Penalties for delayed work start at only $1,500 per day for the first week, rising to $9,000 per day after 60 days, amounts that may be insignificant compared to cleanup costs avoided. | medium |
| 03 | The State of Indiana settled for $37,842.41 for all oversight costs through January 2009 and waived all other claims for that period, releasing defendants from potentially greater liability. | medium |
| 04 | Defendants could proceed with work under conditional EPA approval pending court entry of the stipulation, allowing implementation before formal legal obligations were established. | medium |
| 05 | The 2024 amendment preserves defendants’ ability to submit documents for EPA approval subject to modification or disapproval, giving them ongoing negotiating power over remedy scope. | low |
| 06 | No individual executives or corporate officers are named as personally liable, allowing corporate entities to absorb costs without personal accountability for decision-makers. | medium |
| 07 | The consent decree allows modification of Exhibit A by written stipulation without full court proceedings, enabling informal amendments outside public scrutiny. | low |
| 01 | EPA and the State of Indiana incurred oversight costs that exceeded the $850,000 cap paid by defendants through 2003, forcing taxpayers to subsidize monitoring of corporate pollution. | high |
| 02 | The government must continue incurring oversight costs for additional work beyond the original remedy, with no predetermined cap on future expenses. | medium |
| 03 | Multiple rounds of investigation, design, and implementation since 1991 have required sustained government resources to oversee corporate compliance for over three decades. | high |
| 04 | The 2024 amendment requires submittal of a revised alternatives analysis within 90 days, indicating EPA must dedicate additional staff time to review and approve yet another round of proposals. | medium |
| 05 | EPA plans to issue a decision document selecting an amended remedy, requiring further agency resources to evaluate alternatives and conduct public comment periods. | medium |
| 01 | Environmental Conservation and Chemical Corporation and over 230 other defendants have avoided comprehensive cleanup for more than 30 years through repeated partial remedies and legal negotiations. | critical |
| 02 | The case demonstrates how corporations can exploit complex regulatory processes to delay environmental restoration while contamination spreads and communities suffer. | high |
| 03 | Even with a Superfund designation and multiple consent decrees, the site still lacks a finalized long-term remedy as of 2024, with additional analysis and decision-making required. | high |
| 04 | The pattern of failed remedies followed by additional work requirements shows that initial corporate commitments were inadequate and enforcement mechanisms insufficient. | high |
| 05 | Communities bear the health risks and economic costs of contamination while defendants negotiate incremental compliance measures over multiple decades. | critical |
| 06 | The 2024 amendment represents another chapter in an ongoing saga, not a final resolution, with future remedial action plans still pending EPA approval and court adoption. | high |
Timeline of Events
Direct Quotes from the Legal Record
“The Consent Decree required defendants to implement the remedy for hazardous substance contamination at the Environmental Conservation and Chemical Corporation Superfund Site (hereinafter, the ‘ECC Site’ or the ‘Site’) near Zionsville, Indiana, pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act (‘CERCLA’), 42 U.S.C. § 9601 et seq.”
💡 Confirms the site required federal Superfund intervention due to hazardous substance contamination serious enough to invoke CERCLA.
“WHEREAS, in March 2003, EPA determined, after consultation with the State, that the remedial action had not achieved the requisite cleanup standards”
💡 EPA officially determined the remedy failed twelve years after the original consent decree was entered.
“WHEREAS, after installation of the PRGS in 2008, the Parties determined around 2011 that the PRGS system was not adequate and that the operation of the PRGS and the dual phase SVE system was being adversely affected by, among others, the larger volumes of water than expected in the trench system after precipitation events”
💡 Another major remedial component failed within three years of installation, requiring suspension of operations.
“WHEREAS, in 2016, after completion of the investigation of the sources of the excess water in the trench system particularly after precipitation events, the Parties agreed to additional measures to reduce flows to the trench system and to address contamination that had recently been detected migrating from the Site to an area south of the Site”
💡 Contamination spread beyond original site boundaries, demonstrating containment measures failed.
“WHEREAS, sometime after the ESD was issued in 2006, negotiations to amend the Consent Decree stalled, the Parties never reached full agreement on Attachment Z-1 nor a Consent Decree amendment, and those documents were never finalized to lodge with this Court”
💡 Despite EPA issuing a decision document in 2006, formal legal amendments were not completed until 2024, an 18-year delay.
“WHEREAS, in order to expedite the environmental benefits provided by the Additional Work as set forth in the final ESD, the Parties proceeded in good faith to implement those measures consistent with the purpose of the Consent Decree to assure protection of human health and the environment, so that the elements described in EPA’s September 15, 2006 ESD were constructed and operated as Additional Work consistent with Section VII of the Consent Decree”
💡 Cleanup work proceeded outside formal court-approved consent decree modifications for nearly two decades.
“Settling Defendants shall not be liable for paying government oversight costs in excess of $850,000 incurred in overseeing the Work and paid by the United States prior to Dec. 2, 2003 and paid by the State prior to Jan. 1, 2009.”
💡 Defendants negotiated a cap limiting their financial responsibility for government oversight regardless of actual costs incurred.
“The Settling Defendants have paid to the State $37,842.41 in full settlement of the claims of the State for its oversight costs paid or incurred at the Site prior to January 1, 2009. The State, having received the $37,842.41, waives, releases, and discharges the Settling Defendants from any and all claims from the beginning of time for all oversight costs the State paid or incurred prior to January 1, 2009 at or in relation to the ECC Site.”
💡 Indiana settled for under $38,000 and waived all other claims for oversight costs over a 26-year period from case filing through 2009.
“For each day that any major milestone in Exhibit A or any of the Work and Additional Work identified in Paragraphs a through c below is delayed: Settling Defendants shall pay $1,500 for the first 7 days; $4,000 for the 8th through 30th days; $6,500 for the 31st through the 60th day; and $9,000 a day after the 60th day.”
💡 Penalties start low and take over two months to reach maximum of $9,000 per day, amounts that may not deter delay.
“Within 90 days of the filing of the 2024 Stipulation and Order Amending Consent Decree and Modifying Exhibit A with the Court, Settling Defendants submit for approval by EPA (in consultation with the State) as Additional Work under Section VII of the Consent Decree a draft Revised Remedial Alternatives Analysis Report evaluating alternative remedies to assure remediation of contamination at and from the Site long-term”
💡 As of 2024, defendants still have 90 days just to submit an analysis, meaning selection of a comprehensive long-term remedy remains months or years away.
“WHEREAS, following any issuance by EPA of a decision document selecting the amended remedy for the Site and EPA’s review and approval (in consultation with the State) of a Revised Remedial Action Plan to implement the amended remedy, the Parties intend that the approved Revised Remedial Action Plan will supersede the Combined Revised Exhibit A and the 2024 Exhibit A Update below creating the most recent, up-to-date, and comprehensive version of the remedy for the Site”
💡 The 2024 amendment is not the final remedy but another interim step, with a comprehensive plan still to be developed and approved.
“WHEREAS, the remedial action selected by the ROD consisted of, inter alia, installing and operating a soil vapor extraction (‘SVE’) system to treat contamination in the soil and groundwater and a Resource Conservation and Recovery Act– compliant cover over certain areas where hazardous substances were present (‘RCRA Compliant Cap’)”
💡 The original remedy required both vapor extraction and a specialized hazardous waste cap, indicating serious contamination levels.
“for component (c) referenced above, in 2022 and 2023 EPA (in consultation with the State) provided authorization for the Settling Defendants to proceed with the Additional Work outlined in the ‘Revised Extraction Well Installation Work Plan and Response to Comments of November 1, 2022’ which EPA modified and approved in June 2023 as to technical aspects and issued authorization to proceed pending entry of this Stipulation and Order (hereafter ‘Revised Extraction Wells Plan’)”
💡 Additional extraction wells had to be installed to control and treat groundwater that migrated south of the original site boundaries.
“This 2024 Stipulation and Order Amending Consent Decree and Modifying Exhibit A shall be lodged with the Court for a period of not less than 30 Days for public notice and comment. The United States reserves the right to withdraw or withhold its consent if the comments regarding this amendment and modification disclose facts or considerations indicating that the amendment and modification is inappropriate, improper, or inadequate.”
💡 The government can still withdraw the agreement based on public comments, indicating this is not yet final as of filing.
“the Settling Defendants submitted the ‘Basis of Design for Groundwater Treatment System Improvements Rev 1’ on August 4, 2023, which EPA approved on September 6, 2023, as to technical aspects with authorization to proceed pending entry of this Stipulation and Order (hereinafter ‘Replacement Treatment Plant Design’)”
💡 EPA approved technical plans but withheld full authorization for over a year pending court entry of this stipulation, further delaying implementation.
Frequently Asked Questions
So the Department of Justice has a page for this: https://www.justice.gov/enrd/consent-decree/us-et-al-v-environmental-conservation-and-chemical-corporation-et-al
idk how long it’ll stay for, but the DOJ also got: https://www.justice.gov/enrd/media/1385236/dl?inline
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